NEW 145 MHz SOURCE MEASUREMENTS BY PAPER IN THE SOUTHERN SKY

@article{Jacobs2011NEW1M,
  title={NEW 145 MHz SOURCE MEASUREMENTS BY PAPER IN THE SOUTHERN SKY},
  author={Daniel C. Jacobs and James E. Aguirre and Aaron Parsons and Jonathan C. Pober and Richard F. Bradley and Christopher L. Carilli and Nicole E. Gugliucci and Jason R. Manley and Carel van der Merwe and David F. Moore and Chaitali Parashare},
  journal={The Astrophysical Journal Letters},
  year={2011},
  volume={734}
}
We present observations from the Precision Array for Probing the Epoch of Reionization (PAPER) in South Africa, observed in 2010 May and September. Using two nights of drift scanning with PAPER's 60° FWHM beam we have made a map covering the entire sky below +10° declination with an effective center frequency of 145 MHz, a 70 MHz bandwidth, and a resolution of 26′. A 4800 deg2 region of this large map with the lowest Galactic emission reaches an rms of 0.7 Jy. We establish an absolute flux… 

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References

SHOWING 1-10 OF 22 REFERENCES

The VLA Low-Frequency Sky Survey

The VLA Low-frequency Sky Survey (VLSS) has imaged 95% of the 3π sr of sky north of δ = -30° at a frequency of 74 MHz (4 m wavelength). The resolution is 80″ (FWHM) throughout, and the typical rms

A model of diffuse Galactic radio emission from 10 MHz to 100 GHz

Understanding diffuse Galactic radio emission is interesting both in its own right and for minimizing foreground contamination of cosmological measurements. cosmic microwave background experiments

The NRAO VLA Sky Survey

The NRAO VLA Sky Survey (NVSS) covers the sky north of J2000.0 δ = -40° (82% of the celestial sphere) at 1.4 GHz. The principal data products are (1) a set of 2326 4° × 4° continuum "cubes" with

The Molonglo Southern 4 Jy Sample (MS4). I. Definition

We have defined a complete sample of 228 southern radio sources at 408 MHz with integrated flux densities S408 > 4.0 Jy, Galactic latitude |b| > 10°, and declination -85° < δ < -30°. The main finding

THE PRECISION ARRAY FOR PROBING THE EPOCH OF RE-IONIZATION: EIGHT STATION RESULTS

We are developing the Precision Array for Probing the Epoch of Re-ionization (PAPER) to detect 21 cm emission from the early universe, when the first stars and galaxies were forming. We describe the

The GMRT Epoch of Reionization experiment: a new upper limit on the neutral hydrogen power spectrum at z≈ 8.6

We present a new upper limit to the 21cm power spectrum during the Epoch of Reionization (EoR) which constrains reionization models with an unheated IGM. The GMRT-EoR experiment is an ongoing effort

The Murchison Widefield Array: Design Overview

The Murchison Widefield Array is a dipole-based aperture array synthesis telescope designed to operate in the 80-300 MHz frequency range. It is capable of a wide range of science investigations but

A search for steep spectrum radio relics and halos with the GMRT

Context. Diffuse radio emission, in the form of radio halos and relics, traces regions in clusters with shocks or turbulence, probably produced by cluster mergers. The shocks and turbulence are

CALIBRATION OF LOW-FREQUENCY, WIDE-FIELD RADIO INTERFEROMETERS USING DELAY/DELAY-RATE FILTERING

We present a filtering technique that can be applied to individual baselines of wide-bandwidth, wide-field interferometric data to geometrically select regions on the celestial sphere that contain